It's the obsession, not the activity. Men tend to get obsessed with things they do for leisure. At least with things like fishing, building, or sports it gets them out of the house and out from under foot. With gaming, it intrudes into your own peace and quiet (try listening to 1st person shooters on stereo all day, no dopamine from playing, just constant ear drum throbbing noise), your space (all the paraphernalia and snacks that never get picked up wreck your living space) and the running of the household (everyone else is in a state of emotional duress from the noise pollution, the hurt feelings from neglect and getting yelled at because they got in the way and "made" the player mess up, and you can't get anything done or go anywhere because they're ALWAYS playing). Honestly, it eventually gets to be like your home has been invaded by some weird twitchy alien creature who's been snarfing crack.

I actually love playing video games too. I can't stand reality TV for the most part (Naked and Afraid is a guilty pleasure). But, I can play a game through to conclusion or for a set period of time and then put it away for a while. Or a long while. I don't let it take over my life or isolate me from my loved ones. And I dont use it as a cudgel to abuse them for existing in the same space or to shirk my responsibilities.

If it weren't for that obsessive tendency, I don't know that it would matter so much about the "usefulness" or "utility" of the hobby. After all, an argument could be made that gaming had uses too. Doesn't it provide a place to learn and practice strategy, problem solving, team building and development, and communication in certain settings.